Valve.



DEL-730,988. PATENTED JUNE 16,1903.

. P.' L. WAASE'R.

VALVE.

APPLICATION rman SEPT. a. .1901. 'nlmnwnnov. 14', 1002.

.NO MODEL.

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' UNITED STAT S Patented June 16, 1903.

PATENT OFFICE.

FRANK L. WAASER, OF BROOKLYN, NEW YORK, ASSIGNOR TO J. P.

CUMINS, OF NEYV YORK, N. Y.

VALVE.

SPECIFICATION forming part of Letters Patent No. 730,988, dated June 16, 1903.

Application filed September 3, 1901. Renewed November 14, 1902. Serial No. 131,409. (No model.)

To all whom it may concern.-

Be it known that I, FRANK L. WAASER, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain newand useful Improvements in Valves, of which the following is a specification.

My present invention pertains to feedvalves for hydrocarbon-burners, the construction and advantages of which will be hereinafter set forth, reference being had to the annexed drawings, wherein Figure 1 is a front elevation of the valve; Fig. 2, an end view of the valve shell or casing; Fig. 3, a side elevation, partly in sec' tion; Fig. 4, a side elevation of the valve proper; Fig. 5, a top plan view of the same; Fig. 6, a front elevation of a modified form of construction; and Fig. 7, a side elevation, partly in section, of said modified form.

As is well known to those skilled in the use of hydrocarbons for fuel purposes, there will form upon the valved outlets employed a re siduum composed mainly of paraffin or the like, which in time will stop the flow of the liquid fuel to a greater or less extent, thereby interfering with the proper feed of the fuel and the consequent regulation of the flame.

The present invention has for its object the provision of a self-clearing nozzle or valve; and it consists, broadly, in the employment of clearers or knives interposed between the seat and the regulating member, to which latter member a rotary movement is imparted to render the clearers or knives efiective.

The invention is susceptible of various modifications, and in the aceompanyingdrawings two forms are shown.

The embodiment illustrated in ,Figs l to 5 will be first described. A denotes a shell or body provided with the usual inlet'openings or ports B B and with a conical dischargeoutlet 0, the face thereof being ground or otherwise finished to present a smooth sur-' face. Working in conjunction with said on tlet is a frusto-conioal member D, the angle of its face being such that the inner portion thereof stands at a distance from the seat and approaches the same toward the outer end. The members in this form do not quite 'to and carried by the conical member.

stem E, connected to the frusto-cenical member, extends through a stuffing-box F to the outside of the shell or casing A, and to said stem is connected a rocker arm or lever G,

which in turn is connected to a movable portion of an engine or other source of motion.

A pair of diametrically-arranged knives or clearers H are secured within slots or channels formed in the seat, while a second pair of knives or clearers I are likewise secured The knives or clearers are of such form and dimensions that the pair H bear directly'upon the face of the conical member, while the other pair I work over the seat. When a rocking motion is imparted to the arm G, the rotary reciprocatory motion will be imparted to the conical membeig and as a consequence the knives or clearers will sweep over the surface of the conical member and the seat, cutting or scraping off any. deposit which may tend to accumulate thereon, the loosened substance, if any has accumulated,to be freed, being carried out by the hydrocarbon, which is forced through the valve under more or less pressure.

The modified form shown in Figs. 6 and 7 will nowbe described. In said figures, adenotes the shell or casing, carrying abonnet Z). The shell or casing is formed with an inletc and a conical discharge-outlet d. A conical valve 6 is employed, the stem f thereof extending through a stuffing-box g, the outer end of the stem passing into a seat or bearing it, formed in the outer end of the bonnet. A spring 71 works in conjunction with the stem and normally holds the valve to its seat. The parts will be soarranged that the spring will hold the valve closed until a determinate pressure is exerted by the fluid hydrocarbon or gas, being regulated as desired by regulating the tension of the spring. A weight may be employed in lieu of the spring. Ifhe valve is provided with twolongitudinally-extending slots j, in which are mounted the clearers or knives 70, each knife being formed with a lug or finger Z, which extends into a continuous groove or channel m.

Similar knives n are mounted in slots or ways formed longitudinallyof the seat, the knives being formed with fingers 0, which extend into a groove or channel 19, formed in the valve. These knives or clearers fit into the slots or grooves gastight, so that when the valve comes to its seat the passage of gas or liquid hydrocarbon therethrough is prevented. From this it will be seen that a pair of the knives are always fixed against longitudinal movement, but

may nevertheless move into and out of the ways or channels formed in the valve as the valve is moved to and from its seat, thereby insuring close and working contact between the knives and the valve-seat. The other pair will be moved back and forth with the valve, at the same time moving into and. out of the ways formed in the valve-seat, this pair always maintaining close contact with the valve proper and working over its surface to keep it free of any accumulation of solid matter or deposit. As in the other form,

movable into and out of said orifice to decrease or increase the space between the two; and means interposed between said parts for keeping the space between them free from accumulation of solid matter.

2. In combination with a valve and its seat; means interposed between said parts for keeping the space between the two free from accumulation of solid matter.

3. In combination with a valve and its seat,

a clearing device interposed between the same.

t. In combination with a valve and its seat, a clearing device interposed between the same; and means for imparting rotary motion to said valve.

5. In combinationlwith a valve and its seat; a knife carried by the valve acting on the seat; and means for imparting rotary motion to the valve.

6. In combination with a valve and its seat, a pair of clearing devices carried by the valve; 9. second pair of clearing devices attached to the seat; and means for imparting rotary motion to the valve.

7. In combination with a valve and its seat, a pair of knives carried by the valve and movable toward and from the seat; and means for imparting rotary motion to the valve.

8. In combination with a valve and its seat, a pair of knives attached to the valve and movable radially toward and from the seat; a pair of knives attached to the seat and movable radially toward and from the valve; and means for imparting rotary motion to the valve.

9. In combination with a valve-seat having a groove or channel formed around the same; a pair of knives having a lug or projection extending from each into said groove or channel, said knives being mounted in ways formed in the valve-seat; a valve having a groove or channel formed around the same; a pair of knives having lugs or projections extending therefrom into said channel, said knives being mounted in waysformed in the valve; and means for imparting rotary reciprocatory motion to the valve.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK L. WAASER.

Witnesses:

HORATIO S. BYRNE, E. A. MACGLEAN. 

